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September 30, 2025Physical Review X

Exciton Formation in Two-Dimensional Semiconductors

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Authors

KMK. MourzidisUniversité Fédérale de Toulouse Midi-PyrénéesVJVishwas JindalInstitut National des Sciences Appliquées de ToulouseMGM. M. GlazovNational Institute for Materials Science

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Implication

This investigation reveals competing exciton formation processes in 2D materials, indicating crucial insights into exciton physics.

Key Points

  • Exciton formation processes in monolayer TMDs involve geminate and bimolecular mechanisms, operating concurrently for laser energies above the gap.
  • Luminescence intensity increases by up to 40% with circularly polarized light compared to linear, indicating the importance of spin-dependent processes.
  • Observations show that exciton polarization persists beyond the bandgap, affirming the presence of geminate formation alongside bimolecular.

Cite This Study

Mourzidis et al. (2025) studied this question.

synapsesocial.com/papers/68dc262a8a7d58c25ebb3754https://doi.org/10.1103/66rj-jbqw
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